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Literature summary for 2.7.1.150 extracted from

  • Gan, Q.; Wang, X.; Zhang, Q.; Yin, Q.; Jian, Y.; Liu, Y.; Xuan, N.; Li, J.; Zhou, J.; Liu, K.; Jing, Y.; Wang, X.; Yang, C.
    The amino acid transporter SLC-36.1 cooperates with PtdIns3P 5-kinase to control phagocytic lysosome reformation (2019), J. Cell Biol., 218, 2619-2637 .
    View publication on PubMedView publication on EuropePMC

Protein Variants

Protein Variants Comment Organism
additional information ppk-3(n2668) strong loss-of-function mutants embryos contain many vacuolar structures of different sizes, a subset of which are positive for both LAAT-1::GFP and HIS-24::mCh, indicating that they are phagolysosomes. The double mutant of slc-36.1(yq110) with ppk-3(n2668) contains enlarged autolysosomes similar to ppk-3(n2668) single mutants Caenorhabditis elegans
S1448L naturally occuring mutation yq24, yq24 mutants exhibit embryonic vacuoles similar to slc-36.1 mutants. Double mutants of yq24 with ced-4(n1162) show neither button-like apoptotic cell corpses nor vacuolar structures. The yq24 embryonic vacuoles are enriched for both LAAT-1::GFP and HIS-24::mCh. Mutant yq24 embryonic vacuoles are phagolysosomes arising from apoptosis Caenorhabditis elegans

Localization

Localization Comment Organism GeneOntology No. Textmining
lysosome
-
Caenorhabditis elegans 5764
-
vacuole lysosomal Caenorhabditis elegans 5773
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Caenorhabditis elegans

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + 1-phosphatidyl-1D-myo-inositol 3-phosphate Caenorhabditis elegans
-
ADP + 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate
-
?

Organism

Organism UniProt Comment Textmining
Caenorhabditis elegans G5ED98
-
-

Source Tissue

Source Tissue Comment Organism Textmining
embryo
-
Caenorhabditis elegans
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 1-phosphatidyl-1D-myo-inositol 3-phosphate
-
Caenorhabditis elegans ADP + 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate
-
?

Synonyms

Synonyms Comment Organism
PIKfyve
-
Caenorhabditis elegans
PPK-3
-
Caenorhabditis elegans
PtdIns3P 5-kinase
-
Caenorhabditis elegans

Cofactor

Cofactor Comment Organism Structure
ATP
-
Caenorhabditis elegans

General Information

General Information Comment Organism
malfunction loss of PPK-3, the Caenorhabditis elegans homologue of the PtdIns3P 5-kinase PIKfyve, causes accumulation of phagolysosomal vacuoles that are defective in phagocytic lysosome reformation (PLR). Loss of slc-36.1 and ppk-3 causes strong defects in autophagic lysosome reformation in adult animals. Ppk-3(n2668) strong loss-of-function mutants embryos contain many vacuolar structures of different sizes, a subset of which are positive for both LAAT-1::GFP and HIS-24::mCh, indicating that they are phagolysosomes. The double mutants of slc-36.1(yq110) with ppk-3(n2668) contain enlarged autolysosomes similar to ppk-3(n2668) single mutants Caenorhabditis elegans
metabolism amino acid transporter SLC-36.1 and PPK-3 function in the same genetic pathway, and they directly interact with one another. The SLC-36.1-PPK-3 axis is essential for autophagic lysosome reformation (ALR) Caenorhabditis elegans
physiological function the phosphatidylinositol 3-phosphate (PtdIns3P) 5-kinase PIKfyve and the lysosomal calcium channel TRPML1 are required for endocytic lysosome reformation. PIKfyve generates phosphatidylinositol 3,5-bisphosphate, which activates TRPML1 to control lysosomal Ca2+ efflux. The SLC-36.1-PPK-3 axis is essential for ALR Caenorhabditis elegans